Combined type-writing and computing machine.



T. A. HART.

COMBINED TYPE WRITING AND COMPUTING MACHINE- APPLICATION FILED SEPT.22.I9I I.

Patelllted Aug. 21,11%?.

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Y II 37 @Moine A F. A. HART. CoNI'IIINI-:D TYPE WRITING ANIJ COMPUTINGMACHINE APPLICATION FILED SEPT.22. 191|.

Patented Aug. 21, 191?.

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COMBINED TYPE WRITING ANO COMPUTING MACHINE.

APPLICATION FILED SEPT. 22.1911.

Patented Aug. 21, 1917.

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INVENTOR: @MMA/M ATTORN UNITED STATES PATENT oErioE.

EEEDERIGE A. naar, or JERSEY Giri, NEW JERSEY, AssiGno-E ro nnnnnwoon M-rUrrNe MACHINE conservi?, or NEW Yoan, ii. Y., A conronerion or NEWYoan.

Specification of Letters Iatent.

Patented Aug. 21, 1917.

Application filed September 22, 1911.V Serial No. 65),700.

' T all whom t may concern:

Be it known that I, FnEnEnioK Afl-Llene a. citizen .of the UnitedStates, residing in Jersey City, in the county .of Hudson and State ofNew Jersey, have invented certain new and useful Improvements inCombined /ypewriting and Computing Machines, ot which the following is aspecification.

My invention relates to automatically con-.

trolled devices for operating combined typewriters and computingmachines, and is substantially an improvement on co-pending applicationNo. 650,422, filed September 20, i911. This latter shows a machine ofthe Underwood-Hanson type, in which the numeral keys of a typewriter arecaused to set pins in a. computing device. vThe digit or denominationalcolumn members in this computing device, are controlled by jacks mountedon the main frame and operated by a denominational selector carried bythe paper carriage its letter feeding move In the speciiic form shown inthe application, a speciei jack is set next h jack which controls theunits column, an this'special jack is made to operate a device'-orsilencing or obstructing the nu- -ineral keys and vscreening thetotalizer, so that no key can be struckor total ascertained until thisdevice is released. At the same time, this special jack starts a motorto drive a general operator in the computing mechanism. This lgeneraloperator moves racks, on which thev pins have been set up to rotate thecomputing wheels or carry the numbers represented by the pins into thetotalizer, simultaneously releases vthe silencing and screening devices,and then restores 'Sie pins ready to write a new number.

While I have shown the silencing device 'for the keys in the form of abar which interferes Awith their ready operation, it is obvious that forsome of the purposes oi my invention, other forms of silencing meansmight be used.

\ My invention is herein illustrated a specific improvement on themachine described abogve, and as shown in detail, comprises animprovement` on the special jack whereby the motor starting device maybe disconnected'. In thatcase, the general operator must be driven handto perform all its' functions of operating the computing device andreleasing the silencing and screening devices, but the )ackautomatically' sets the silencing and screening devices after a numeralis written in the units column. To accomplishthis, I have provided aslide on the special jack which in one position is adapted to operatethe starting device, and in another positionis completely inoperative,while the main body of the jack always will operate the obstructing andscreening devices. i

Thus when the motor is disabled, or a source of electric power fordriving is not available, the starting device can be coinpletely cutout. There is then no strain'on the parts of the typewriter -to operatethe device and there is no waste of electric current. This makes theoperation of the machine more economical and avoids wear'on the parts.

Some features of my invention are applicable to other machines, forother purposes. @ther tea-tures and advantages will be here inafterpointed out or be obvious to `those skilled in the art.

, In the accompanying drawings,

Figure i is a sectional elevation of an Underwood-Hanson combined'typewriting and adding machine, of the kind to which the aboveimprovements are applied.

Fig. 2 is a front elevation, partly in section, of the electromagnet,the motor and the connections between them.

Fig. 3 is a diagrammatic view of the electromagnet and the contacts forstarting it.

Fig. i is an enlarged view of the electric contacts.

Fig. 5 is an enlarged plan view of the shifting device operated by thecarriage.

Fig. 6 is a section through the switch and clutch or the motor when atrest.

Fig. 7 is.a section through the same at the moment ot starting.

Fig. 8 is'ra side elevation of a pair of brushes Iand the device onwhich they are mounted. 1

Fig. 9 is a perspective view of a disk, used for supporting andoperating a rotary bridge.

shaped ring.

' Fig. 11 is a fragmentary section showing tlieends of the Aj acks andthe tappe't forl raising them.

`-Fi'g.j12 is a perspective .view of my device Numeral keys l .depresslevers ate through bell cranks 3 to throw type barsv 4 upwardlyandrea'rwardlyto strikey on the front of platen 5, which is mounted totravel on a letter-feeding carriage 6, driven 'in the usual manner byl aspring (not shown). This carriage 6 is controlled by letter feedingdevices comprising a universal bar 7 lactuated by heels 8 'on the typebars 4, and

forming part of a frame 9, which has Vibrating supports 10, and actuatesthe usual letterfeeding dogs 11 to control escapement wheel12.

--Upon said carriage 6 is a denominational'y selector inthe form of atappet or'dog 13,

l which vis usuallyr adjustable along the rack bar 14,'and has a camedge to lift successively jacks 15 arranged in a row, mounted on afulcrum 16. The rear ends 17 of the jacks press down links 18, tovibrate levers 19, which are connected .to linkages 2Ol to elevate therear ends of a series of denomination -or column barsl 21, whose forwardends carry racksj .22, meshing with pinions 23 fixed on dial orcomputing wheels 24, whereby the latter may be rotated.

The numeral keys 1 have stems 25,' to op- I erate arms 26 fast uponshafts 27, which support linkages 28 on arms 29. These linkages "aredepressed. when arms 26 are -`d epressed, and are adapted to strike anyone of a series of pins 30. upon the elevated rack bar 21. As thecarriage 6`feeds step-by-step,

i .ing thedepressed pins into the path 'of a: cross-bar `forming part ofa general operthe rack bars 21 are elevated in succession,

and downwardly from each i's projected a `pin 30 in the manner justdescribed. The

rack'bars fall t'o normal position, thus bringator. The generaloperator, which also V,comprises apair of varms 32,and a pair of racks33 on 'opposite sides ofthe machine, is con- 4 nectedibynpunlls 34 andsegments 35 toa pressed pins and drives shaft 36. After-the pins are setup pressed) by the numeral keys 1, the general operator moves forward,and the bar 31 of the general operator engages `all the deforward theracks 22 corresponding distances, 'to turn the .dial wheels 24accordingly. The wheels are not turned on ithe return stroke, because ofa pawl and ratchet connection not shown, but

the pins are restored in their original posions readyto be set up for anewnumber. nelloudrive-the machine by power, an inter` with a mainvshaft 40. .fixed worm 41 turning worm vwheel 42 (i. e. de- 4,

' lever n machine till arm 55 strikes-pin 53,:`1When mittentlyoperatedmotor 37 is attachedto the adding machine table mounted to revolve onshaft 43. `Crank arm 44, fast on shaft43, carries slide 45T-mounted inbar 46. turns worin 41 and worm wheel 42 ,-if shaft 39, and'is providedyUpon shaft '.lhusfwhenv the motor 37 43 rotateswith wheell 42 arm 44will rotate I labout shaft 43, reciprocating bar 46,- on

which rests yoke 47 bolted to the rack 33 of the general operator anddrives it.v

Key 48 on plunger 49, depress'es bar 50 to ."7

strike the end'51 of 'lever 52'to raise pin 53, 4

which controls the" clutch and starting switch of motor 37. i

Referring now particularly to Figs. 2, 6,

7, 8, 9 and 10, pin 53. extends normally through casing 54,'so as topress arm 55 against shoulder 56 of ring 57 compressing .spring 59.Ring,57' is not fixed to hub 60 of worm wheel 42, but en ages it withsome friction obtained by against 60 by springs`62 mounted on 57 by`screw 63. Within sockets 64, of ring 57, rolls 64a turn freely and arenormally out of vContact with cup inember65 ixedon shaft 43 lby key 66.'Cup member 65.has cam or coarctate sockets 67 `lto insure this freedomfrom contact, but if hub '60 turns counterclockwise slightly, itc'arriesring 57 and rolls 64a to the shallow portions of the sockets' 67 andthey jam, thus forcing ring 65 and hub 60 .to revolve together, and thecombination forms a clutch driving shaft 43from worm wheel 42. o

Arm 55 is formed as a'turned up edge of ring 63 loose oneup member 65.On ring 68 is mounted the conductor ring 69, constituting a rotarybridge having a gap filled by insulation segment 70. Against this ri'nbear thefends 71 and 72 of brushes 73 and l74 mounted on insulator plate75 `fixed on stud 76 of the casing. Through. these brushes the cui-rentdriving the motor passes fronivwires 77. There will then be one posi-'tion 'of the brushes in which end 7l of brush locks 61 pressed Ithebrushes and insulator segment 70,4 are so set that the withdrawal of:pin 5', :is shown in Fig. 7, will bring the conductor pai-tof ring 69overibrush 7 3, thus sending the current through the vmotoin Thiscarries ring 57 around as above :described till the lrolls jam, and theny-the whole clutch revolves. i

In actual operation pin 53is. droppedy back immediately by thepressure'of spring 7 S mounted on the main frame and pressing The motorcontinues to driye the -fiiig independently for a time.

"fTo effect ythe automatic starting of the motor the following mechanismused. F1g. 5 is an enlarged plan showing the frame .9"cairying the jacks15. The last jack to 10' the left bears 'onl a link 18 which extendsdownward like the other links 18 above described, but carries a lug. 80carryinga pin which rests in fork 81 of bell crank 82, the other end 83of which carries a spring 84 eX- tending from the main frame, andtending to. draw link 18 upward. Beneath the boss of lever 82 is a pinor push button 85 of in: sulating material resting on electric springterminal 8G and adapted to press it against another terminal 87 'andthus close a leading circuit (see Figs. 3 and 4). A circuit wire 88 isconnected to terminals 86 and 87 by suitable binding keys and leads tothe winds ings 88a of an electro-magnet 'supported from the main frameby a U-shaped member 89 held to its yoke by screws 90. Above thecores^91`of the magnet is an armature 92 attached by screws 93 to lever52 from which the starting pin 53 is hung. Also included .in theelectro-magnet leading circuit is preferabl y included a battery 94,which may c0nsistvv of a few dry cells to furnish a. low ten- Y sioncurrentwhich will not/spark.

It will be evident that when the dog 13 is moved along with thetypewriter carriage past the jack for the last 'or units column offigures, it will strike the last jack and depress the pin to close theleading circuit around the magnet. This will draw the armature down,raise the starting pin, andthe motor in the main circuit will drive. the

merals just written, and restoring the pins vready to be set for a newnumber.

Special jack 15 is cut away at 95, Fig. 11,

so that it is not held raised, but is only raised momentarily as thecarriage in its letter spacing movement carries the tappet 13 fromioneposition of rest to the next. Thus the link 18 closes the leadingcircuit just long enough to energize the magnetv and thus raise thestarting pin. Fig. 11 shows the position of the parts after passing theunits jack and. striking the special jack. In -the particular embodimentshown, a

bar or guard 9G is provided for obstructing I the'operation of thenumeral keys 1, and a shutter 97' for coveringthe totalizer 24.

Bar 96 is fixed on rods 98 so that may vreadily svving from normal(shown 1n dotted lines) to covering position, and these rods are fast4on rock shaft 99. Shutter 97 isf rotated by rodn100, the` latter'pivoted to `97 at 10.1 and to leverf102vat 103. Lever 102 -13momentarily raises the special jack-15" and thereby depresses link `18alto act throughvf bell crank 109 to draw back said latch'106i from notch108 to release operatingarmVVA 104 and permit spring 105 tooperate."311k` guide pin 110 is provided for latch 106.'

The connection between spring y and operating arm 104 includes a bellcrank 1111 which raises fork 112, in which rests ypin'- 113a on aprojection of said operating arm'.`

The general operator depresses operatingarm 104 by means of a bell crank113, whichl has one arm 114 resting in a notchf115-in` the side* frame33 cfnsaid general operator.: The forward movement of the generaloperarV ator causes this arm v114 to ride up onto the flat side 116 ofsaid side frame 33, and swings arm 117 of said-bell cra-nk 113 againstau arm 118 of bell crank 111. This raises? said arm 118 and depressesoperating arm 104 so that slidable latch 106 maybe driven' into notch108 by spring 119 on shaft 120 and relock the key guard and totaliaershutter in inoperative position. x

The operation ofthe machine isi as .follows: The operator depressesnumeral keys printing numbers and recording them in the computing devicein the various columns till one .is struck in the 'units column.Afterjpassing 4this the ytappet on the carriage, which has successivelydepressed the j acks.

'for each column to control the computing'- meehanism,momentarily.depresses the spe; cial jack. This moves one hnk to:loclnthe numeral keys and the totahzer, while theother raises thestarting pin, sending current i through the motor to drive thevcomputingmechanism by the clutch. This automati-l body. One of said pinsilsovserves;` asa I pivot for thumb lever which. tur`ns` loosely on athird pin 126'vvhich is 'tixedthe mainbody,and so the thumb leverfis`adapted to move slide 122 back and forth. The rear end of the slide isbeveled at 12T,

and is broad at 128 so as to strike fairlyf .11.5. cally releases thelocking devices, and' \\ihe n 'y f rests on bracket 133.

on link 18 which controls the leading circuit. IVhen thumb lever 125 isthrown forward, the slide no longer strikes link 18 (see Fig. 14), andso the starting device does not operate. 'Ihe lock conti'olling link 18awill still be operated,however, by the body portion of the special'jack.rljheslide carries aspring latch 129 adapted to'hold it when set, and issupported against strain by a plin 180 extending from the body of thejac Then ininoper'ative position, .the automatic starting device is notbrought into use. and the general operator is operated by hand. .Forthis4 purpose the motor drive may be disconnected. This can be done asin my application No. 596,451, filed December 9, 1910, by pulling downcam lever 131,

which normally supports the end 132 of the gear casing, and then lettingthe casing swing on' main shaft 40 of the motor till it This withdrawsbar 46 'from yoke 47 of the general operator, thus completelydisconnecting the motor from the computing mechanism.1 The generaloperator isthen free to'be driven by reciprocating handle'134 which isvfaston shaft 36, operates the computing mechanism i andreleases theobstructing devices.

When thrown back into operative position, the'special jack ,moves v`bothlink 18a vto operate the covering devices, and link` 18 to start themotor to drive the general opwator. This general operator, asdescribed.,

above, operates the computing mechanism.

Where, in the specication and in the -claims', I have used the termssilencing device.or ,silencing means, it is to be understoodl that Irefer to the 4fact that the setting-up of the indexing devices byoperat- :ing thekeys in the usual manner is -discontinued, and I do notlimit myself to the particular form of construction shown. Any

- form of device by which the function of the,

keys for controlling the setting of digits is 'interfered with orrendered quiescent, or

put at rest, or held' in abeyaiice, 'is within the scope of the termsilencing.

Variations may be resorted to within the scope of the invention, andportions of the improvements may be used without others.

Haviiig thus described my invention, Ii,

claim:

y 1. IIn a key-controlled computing mechanisni, numeral keys, a seriesof jacks, a special jack, a tappe't moving the jacks successively, asiide'on-the special jack havingan operative and an inoperativeposition, an obstruction for said keys controlled by the body of thespecial jack, andv anobstructionrelease controlled by said slide when inoperative position.

2. In a key-controlled computing mechanism, numeral keys, a series ofjacks, S1319` cial j ack, a tappetanoving jacks s ucc'es- 3..In akey-controlled computing mecha n ism, .numeral keys, al series of jacks,a special jack, a slide on the special jack having an operative and anrinoperative position. a

tappet moving the jacks successively, an obf..

struction for said keys controlled by the bod-y of the special jack, anda' computing Imechanism drive controlled by 'the slide on thespecialjack when in operative position.-

4, The combination with a 4computing mechanism, of numeral keys forcontrolling the action of said computing mechanism, s' drive for saidcomputing mechanism, 4ob structing means for said numeral keys, amember. coming into play at a predet'ery mined. point in a computingaction for con-I trolling said obstructing means, and a membeilauxiliaryto said first-mentioned member coperating therewith .and comingintr play at a predetermined pointin the actuation of said computingmechanism'to control said computing mechanism drive, said auxiliarymember being adjustable so as to de` termine at will its effectiveness.A

5. The combination with a. computing mechanism,of numeral keys forcontrolling the action of s'aid computing mechanism, Ia drive for saidcomputing mechanism, obstructing means for said computing mechanismcoming into play at a predeterminedl point during ,the actuation of saidcomputioo ing mechanism, and auxiliary means forming a part of saidfirst-mentioned means for contiplling the action of said drive at a pre--dete/rmined point in the actuation of said computingmechanism, saidauxiliary means being adjustable to render the same operative orinoperative.

6. In a key controlled computing mechanism, a carriage adapted to carrya sheet to be written en, letter feeding means for said carriage, 'typebars for writing on said sheet, a computing device, keys controllingsaid computing device, said type bars and said letter feeding means,aseries of jacks on' the main frame, one ,for each colunlpvqf figuresrecorded by the computing device,

a special jacken the main frame next toI the units column jack, means onthe cai' i'iage to operate said jacksv successively by the letterfeeding motion, a member moved by said special jack to obstruct saidcomputj ing device, and a slide on ysaid special jack adapted to bemoved to a position where it will coperate with said jack and operateobstruction-releasing means, 'said'slide also adapted vto -be 'movedinto lan inoperative i key controlledvcomputing mecha,-`

nism, .a carriage adapted to carry a sheet to be` Written on, letterfeeding means forsaid carriage, type vbars .for writing on'said sheet, acomputing device,l keys controlling said computing` device, said typebars and saidV letter feeding means, a series or' jacks onthe mainframe, one for each column ot' figures recorded by the computing device,a speci alA jack on the. main frame next to the units v oliimn jack,means on the carriage to opera fe said -jacks successively by the letterA,feeding -motion, a member moved by said special jack to obstruct saidcomputing device, and a Aslide on said special jack adapted to be movedto aposition Where it will cooperate with said 'j ack, and controldriving `.meansfor said computing device, said slide alsoadapted to bemoved into an inoperativeiposition. y

S/.In a key controlled computing mechanism, a ,Series otjiacks, aspecial jack, a tappet moving the jacks successively, a slide en thespecial iack having an operative and an. inoperative position, anobstructing device controlled bv the body of the special jack, acomputing mechanism drive con- [rolled by said slide, means for.disconnecting said drive, means for moving .said slide to itsinoperative position, so that it will fail to start said drive, and handmeans for operating said computing mechanism.

9. In a combined typevvriting and computingvmachine, the combinationwith numeral keys andcomputing Wheels, of members in which. numbers aretemporarily registered :as Written, a general operator for carryingnumbers vfrom said members into said Wheels, -a traveling carriage, adenominational selector on said carriage, a jack moved by saiddenominational selector to obstruct the operation of said keys, and anextension on said jack settable so as to act automati` cally. during acomputing operation to cause the operation of said general operator.

10. In a combined typevvriting and computing machine, the combinationwith num eral keys and computing wheels, of mem- .bers in which numbersare temporarily registered as written, a general operator for carryingnumbers from. said members into said Wheels, a traveling carriage, adenominational selector on said carriage, an obstructor for preventingthe operation of said keys, a poiver drive arranged when started ytocomplete one cycle of movement of said general operator, means forholding said obstructor operative when once set, a jack movedmomentarily by said denominational selector to move said obstructor toeffective position, and a member settable on said jack to startsaidpower drive.

11. In a combined typevvriting and computing machine, the combinationWith numeral keys and computing Wheels, of memibers in which numbersvaretemporarily reg- -istered as Written, a general operator for carryingnumbers from said members into said wheels, a traveling carriage, adenominational selector on said carriage, ar jack moved momentarily bySaid denominational selector to obstruct the operation of said keys, anextension on said jack settable to automatically cause the operation of.said general operator, and means moved by travel of said generaloperator for removingsaid obstruction.

12. The combination with numeral keys and computing Wheels, of anobstructor for preventing the operation of said numeral keys, allatchfor ,holding` it in ineffective position` a slidable bar forming thepaivl of said latch, a power device turning said Wheels, electricterminals arranged to be closed to start said power devices, a pin toclose said terminals, a rod from said slidable bar, a rod froml saidpin., and a single Jack operating one or both of said rods. i

13. In a combined typevvrit-mg and com puting machine, comprisingnumeral keys,

computing wheels, a povver device7 an obstructor for said keys, andjacks for connecting' said Wheels and keys, a single jack for operatingsaid obstructor and starting said povver device, and a settableextension on said ack to silence said poiver starting.

14. In a key-controlled computing machine, the combination of ajaclgaslidc on said jack having an operative and an inoperativeposition, an obstructing device, a motor, means controlled by said.motor for releasing said obstructing device, and means operated by saidslide when in operative po- -manual device for also operating saidrunning-up means, means for silencing thesetm ting-up mechanism duringthe operation of running a number into the totalizer, Whether performedby the motor or the manual device, automatic means for bringing said m0-tor and silencing means into action concomitantly, means for renderingthe silencing meansinefective as the motor or the manual devicecompletes the operation of running a number into the totalizer, and athrow-out forfs'aid` automatic means When-driven by themanua'l device.

17; The combination with computing mechanism, of silencing means forsaid com l puting meeha-nism coming into play automatieally at aypredetermined point in the operation of said computing mechanism, re-

storing means for returning said silencing means to an ineffectiveposition, and automatic means for starting said restoring means intoaction, said last-mentioned automatic means being adjustable to deter-`mine Whether it will be active or inactive.

lSflhe combination with a plurality of computing Wheels, ofvaluatingmechanism for aeeumulating` digit by digit anumber to be run into saidcomputing Wheels, driving means for running' the number afteraccumulation into said computing Wheels,

' numeral keys for. controlling` the,aceumula tionv oi the digits,silencing means for said n umeral keys coming into plav automati callyat the accumulation of all of the digits of the number prior to tneii.'transfer to said computing wheels, means operated from said drivingmeans for rendering said meral keys for controlling the accumulationyoil the digits, silencing means for said numera]` keys coming into playautomatically at the accumulation of alll o ftlie vdigits of the numberprior to their transfer to said computing wheels, means operated fromsaid dri ving means -tor rendering said silencing means ineffective, a"composite member acting' automatically to bring into play both. saiddriving Imeans and said silencing means. and means i'or adjusting theparts ot said composite"member so as to rendi-.Tir one of the parts andthe functions controlled thereby silent.

20. In combined typen'riting' and computing machine. the combinatiimwith a traveling carriage. of; a totalizer. mechanism for setting up anumber, means for ruiming the number so set up into the toalizer. meanscontrolled from `said carriage for silencing the setting-up mechanismand initiating' the operation of running a number into the totalizer,means for rendering ine'liq'ective the running up of numbers intotlieitoltalizer by the carriage while said silencing means still remainseffective, and a motor for driving the totalizer. during the running upott numbers.

FREDERICK A. HART.

